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30 lines
702 B
Go
30 lines
702 B
Go
package directory
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import (
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"errors"
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"github.com/ethereum/go-ethereum/core"
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)
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type ctorFunc func() (core.BlockchainLogger, error)
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// LiveDirectory is the collection of tracers which can be used
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// during normal block import operations.
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var LiveDirectory = liveDirectory{elems: make(map[string]ctorFunc)}
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type liveDirectory struct {
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elems map[string]ctorFunc
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}
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// Register registers a tracer constructor by name.
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func (d *liveDirectory) Register(name string, f ctorFunc) {
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d.elems[name] = f
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}
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// New instantiates a tracer by name.
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func (d *liveDirectory) New(name string) (core.BlockchainLogger, error) {
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if f, ok := d.elems[name]; ok {
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return f()
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}
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return nil, errors.New("not found")
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}
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